Home / 83,220.07-124,835.36-35,179.72

Finding the Fourth Proportional to 83,220.07, 124,835.36 and 35,179.72

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Solution

The fourth proportional to 83,220.07, 124,835.36 and 35,179.72 is: 52,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,220.07 : 124,835.36 = 35,179.72 : x
  2. Step 2: Convert to fraction form
    83,220.07/124,835.36 = 35,179.72/x
  3. Step 3: Cross multiply
    83,220.07x = 124,835.36 × 35,179.72
  4. Step 4: Simplify right side
    83,220.07x = 4,391,673,010.90
  5. Step 5: Solve for x
    x = 4,391,673,010.90/83,220.07
  6. Step 6: Final answer
    x = 52,771.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.